Topic: AMD Vega frontier released! (Read 5040 times)

 

R9 Fury is good for ZEC, but not for ETH.

I need to prepare my popcorn for this

I'm curious what the benchmarks are for DAG increase as well.

Need I remind you guys that the R9 Fury cards using HBM get their asses kicked by the R9 390 in mining?  I'd say 40MH/s is perfectly in line with what you'd expect out of these.

The drivers are never optimized for mining at launch, neither are miners for new cards. We won't know the real hashrate for a few months until after the Vega gaming versions come out.

The RX 480 since day one always did 25 mh/s because the first model to launch was with 8gb samsung memory and that is by default 25 mh/s, after bios mod up to 32 mh/s, bios mod came after a month or so.

https://forum.ethereum.org/discussion/14032/vega-performance#latest

I'm not an expert so take this with a grain of salt, do oyur own reading and analysis

I remember when RX 480s came out, and they were getting ~19Mh/s on an 8gb card, then people understood the card's specs and now they hash at 29.
I don't think there is any single miner that is optimized for Vega yet, so it's using generic kernel. And it all depends on the algorithm and how it uses the card's resources.

The r9 380 4gb can hit like 25mh/s maybe even higher with expert modding and cooling (29 is possible but highly unstable), whereas stock it's like 18.5mh/s and with the case of increasing DAG size for ETH, it shouldn't hit too many snags, since it technically has 384 bit bus, but only 256 accessible(physically), which should indicate that memory access was intended to be optimized for a higher bus speed but Radeon didn't want it being better than the 290/390 price to performance in gaming.
In my rough bro-science opinion, it's effectively the same bottleneck on the 470 and to a lesser extent the 480 when the Dag jumps again in the coming months, those cards should see significant performance drops closer to their release date numbers, because they're rocking 256-bit buses and they were made for it.

Vega is a pretty much Fiji meets 14nm, with some improvements. Higher core clock by 60%, faster memory clock by 100%, but half the bus width. I reckon we would have to hit about 50mh/s+ before exhausting the 512 bit memory bus, so unless Vega can hit over 100mh/s (which i doubt) it's going to suffer from poor optimization, and once that's cleared up, it should fetch low 50s at a conservative estimate based on what it's currently doing now to maybe low 70s based on specs, and even higher in pure theoretics regarding how the memory is utilized which might be a hard NO. it should be very resilient to DAG changes, and the gaming cards will be 400-500 USD, 225W, single slot, and according to AMD, even faster, better etc. not a horrible deal. I feel like it should do pretty well in memory hard algorithms where bus or bandwidth are key, like Zcash, Zero(N=192, K=7 ) or Zcoin

You can think of GPU specs as a shipping warehouse, as far as i can tell anyway.
Core: how fast the employees are fetching and packing shipping pallets
Memory speed: how fast other employees are relaying orders to the core and loading the containers into trucks
Memory Bus: how many truck loading docks you have
Memory Bandwidth: how fast you are able to load the trucks.
Hashrate: how fast you are shipping.

Any source on this?

If Vega was a new process node then all would be forgiven but guess what a 14nm again with little improvements and I dare to say another bloated rx 480. My money right now is all on Volta.

Too little too late. Should  have  been here one year ago

Let's hope Vega gaming or mining GPU's will not be like this one since this is for other kind of workloads. This card reminds of the Fury nano hashes around 34mh/s, this is a 14nm and hashes around 40mh/s, memory wise, nothing really changed other than few optimization for professional workloads and perhaps gaming which is not related to how miner solvers work, so point null to this. I have a feeling if all Vega uses HBM2 then miners will have to skip Vega and Vega could probably be one of the greatest fiascos in GPU history, just behind the Radeon HD 2900 XT series.

Some people are reporting 40MH/s after some optimizations.

Still it's far low from the expectations. It doesn't even match up 1080ti in gaming.

But 960Mhz memory, it should be around 2000 

Guess we'll be waiting for Gaming Vega to get our hands on some decent mining cards, I guess. I wouldn't buy unless you really want to mine, and even then it's not a great deal at all considering priced are now jacked up everywhere following the release. Even for gaming Vega FE seems extremely underwhelming even though the card has a gaming mode (yes this is a workstation card, but still)... Not sure what to expect now.

Person may bought it with desperation after missing out on the RX 4 & 5 series cards.  lol

Someone must know something about these cards.  newegg is sold out already.

The gaming one will be 400$ and they said that it will be even better then FE

You don't know that, that's just speculation.

And even if it did 60 its still not worth it considering the price, 3x rx hashing at 90Mh/s is still better.

That's good news, is it better then to wait for vega for mining, and skip this ultra expensive rx models, btw what about polaris bug, will vega have the same dag-hash drop as polaris or they will not be affected like nvidia?

P.S. with mem clock at 700-1000mhz isnt that bad for equihash? Because equihash is more mem heavy than ethas.